1/8 NPT Thread

Standard: ANSI B 1.20.1
Pitch of thread: 0.941
Thread Angle: 60°
Taper Angle: 1°47′
Nominal Pipe Size: 1/8″
Outside Dia(D): 10.287 mm
Pitch diameter at plane of hand-tight engagement (E): 9.489 mm
position of handtight engagement(L1):4.102mm/ 4.36Gg
usefull external thread(L2): 6.703mm
external thread with complete thread profile(L4): 4.821mm
Tapping Drill Size: 8.25 mm